Buddy Ebsen Barnaby Jones Actor Lee Meriwether Betty Jones Actor John Carter Lt. John Biddle Actor Mark Shera Jedediah Romano "J.R." Jones Actor Dabney Coleman Guest Star Bradford Dillman Guest Star Marj Dusay Guest Star Sherry Jackson Guest Star Susan Sullivan Guest Star Robert Webber Guest Star Virginia Paris Guest Star Hank Brandt Guest Star Jill Choder Guest Star Tony Colti Guest Star Hal England Guest Star Eugene Peterson Guest Star Carl M. Craig Guest Star John Davey Guest Star Kathleen Doyle Guest Star Harvey Fisher Guest Star William Meigs Guest Star Steve Shaw Guest Star Artie Spain Guest Star Gerald Sanford Writer Walter Grauman Director